#g++ -o sort_match -O3 -g -Wformat=0 sort_match.cpp -lpthread && time ./sort_match sowpods.txt sowpods.txt.sort 12
g++ -o sort_match_v2 -O3 -g -Wformat=0 sort_match_v2.cpp -lpthread && time ./sort_match_v2 sowpods.txt sowpods.txt.sort 12
